William richard



(No Model.)

W. RICHARD.

SHEARS.

N0. 396,291. Patented Jan. 15, 1889 WIZIZV'ESSES. I O6.

u. wanna mwmnmm w. Winhingiml. n. c.

UNITED STATES \VILLIAM RICHARD, OF BLOOMVILLE, OHIO, ASSIGNOR OFONE-HALF TO MARTIN KOLLER, OF SAME PLACE.

SHEARS.

SPECIFICATION forming part of Letters Patent No. 396,291, dated January15, 1889.

Application filed August 18, 1888. $erial No. 283,071- (No model.)

To all whom it may concern:

Be it known that 1, WILLIAM RICHARD, a citizen of the United States, anda resident of Bloomville, in the county of Seneca and State of Ohio,have invented certain new and useful Improvements in Shears; and I dohereby declare that the following is a full, clear, and exactdescription of the invention, which will enable others skilled in theart to which it app ertains to make and use the same.

This invention relates to cuttingshears.

The object is to produce shears of such construction that the pivotholding the two blades will be prevented from wearing away, so as toallow'the blades to become loosened, and thus spoil the cutting-edges ofthe same.

Furthermore, the object is to produce a cheap and reliable device forthe purposes above stated.

Heretofore it has been customary to secure the two blades of a pair ofscissors 0r shears by means of a single pivot extending through thesame, one blade being provided with a screw-thre2uled opening forengaging the said pivot. It has been found in practice that after ashort while the aperture in the blade through which the screw passesbecomes worn from the reason that the aperture is beveled, so as toallow the head of the screw or pivot to set flush with the face of theblade, thereby presenting but a very small portion of metal at thebearing-point for the pivot to rest against, and that after the screw orpivot has been screwed up to take up this lost motion the wearingcontinues until the blades wabble or have lateral play, in which eventthe cutting-edges of the blades, not striking each other squarely, aresoon worn or ground off, and thus prevent the shears from cutting.

It is the object of this invention to overcome these obstacles in asimple and effective manner; and tothese ends the invention consists inthe novel construction and combination of parts of a pair ofcutting-shears, as will be hereinafter fully described in thespecification, illustrated in the drawings, and pointed out in theclaim.

In the accompanying drawings, forming part of this specification, and inwhich like letters of reference indicate corresponding parts, Figure 1is a view of one of the blades of a pair of shears, showing the same.provided with two cars having openings formed therein. Fig. 2 is adetail view of a clasp or clamp for holding the blades of the shearsintact. Fig. 3 is an elevation of a pair of shears intact with the clampin place. Fig. 4 is an elevation showing the same principle applied topruningshears, and Fig. 5 is a transverse section taken on the line 000c of Fig.

Referring to the drawings, A designates the shears, one blade, A, ofwhich is provided with two ears, a, preferably situated diagonally toeach other, the said ears being provided with threaded openings a. Inthe cen ter of this blade is secured a pivot, a designed to engage anopening, (0 in the other blade, A

B designates a clasp or clamp, which may be made in any desired form,that shown in the drawings being preferred, the under side of which hassecured to orformed integral with it two downward-extendingsemi-cylindrical lugs, b, the distance between the same being equivalentto the distance between the ears of the blade A. At each end of thisclamp are formed openings Z), through which extend screws b engaging thethreaded openings a in the blade A. These screws perform the doublefunction of holding the clamp in position and also of adjusting the samewith relation to the top of the blade A to take up lost motion incidentto the wear of the center portion, 19 against which the upper surface ofthe said blade bears.

In securing the blades of the shears together the pivot a is firstsecured rigidly to the blade A, and the blade A is then placed on thesaid blade, the pivot engaging the opening a in the latter. The clamp isthen placed over the blade A as shown in the drawings, and screws b areinserted through the open ings Z) and screwed into the openings at inthe blade A. If desired, the same device may be applied topruning-shears, where great strain is constantly employed on the rivet,5

and it will be found highly useful and effective for that purpose. Itwill thus be seen that the opening which forms the bearing for the bladeis of the same diameter through its entire length, thus preventing rapidor uneven wearing, which would be the case were the cone-shaped openingemployed, as in shears of the ordinary construction, and that the clampserves to hold the blades intact against any lateral play. Should theblade A become worn away by coming in contact with the under surface ofthe clamp, it will be only necessary to turn the adjListing-screws b andthus take up any lost motion.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

In a pair of shears the combination, with the blade A',provided with thestationary pivot (0 and the integral internal]y-threaded ears u 1

